blacks. >> i don't want anything to destroy my happiness, i want to keep the momentum going. >> that is our show for today, i'm ali velshi. thank you for joining us. cap toured - authorities in mexico find the key suspect in ace ka rocked the country. a drug trafficker behind the disappearance of 43 students allegedly. >> overwhelmed. chaotic scenes in croatia, the latest country facing the influx of thousands of refugees trying to get to western europe. >> false claims.

>> illegal immigration is costing more than 200 billion a year. >> fact versus fiction, where the candidates strayed from the truth at the g.o.p. debate. >> singled out. >> there's a lot of stereotypes for foreigners. the reason for an arrest from a teenager who came to school with a home made clock and left in handcuffsf handcuffsful this is al jazeera america, i'm antonio mora. authorities in mexico have made a break in the missing 43 students last year. a drug boss was one of the master minds and was arrested wednesday. just over 20 miles away from the school where the students

vanish. >> reporter: the man that has been arrested can be a key fart in the puzzle, finding out what happened to 43 students. they were kidnapped by police. the former head testified that he is the person that ordered the killing, and the burning of those students. that's the oversion of what happened. just over a week ago, a group of independent experts released a report and one of the findings was that it was scientifically impossible. it could have burned 43 students to the fact that they were unidentifiable. it will be interesting if the

testimony of lopez will become public, and if he can throw light on what happened to the students. >> europe's refugee crisis is causing chaos? croatia -- chaos in croatia, hundreds forced themselves past a police line. croatia says more than 9,000 refugees arrived since the border was closed. ban ki-moon was shocked by images of hungarian police using water canons and tear gas on refugees. the top human rights official says hungary's response violates international law. lawrence lee is on the border with more on the refugees desperate journeys. >> all day the buses came and offloaded the weary, picking up

belongings, it was on foot. 37 in the late heat. they strode through the fields towards the european union. >> most said, they were syrian, not much talk, just grim determination and quick feet. so the violence and context which the hungarian government showed the refugees is matched by a rare show of enemies, serbia and croatia, the roots for the time being through here and into the european union is open. the question is whether croatia will shut the doors as well. the serbians laid on buses from the boarder, from the capital and the hunk airian boarder.

7,000 crossed the border. it was the european union. families crossed by. >> do you know where you are? >> i don't know. >> this is croatia. >> croatia, having said it would let everyone in or through appeared wrong-footed by the numbers. getting this far. refugees were frustrated at having to wait. you riot police didn't have this much aggression, but it looks like a flashpoint in the making. >> it's allowed through the village. he stay here, he kill told us to stay here. the boss is coming, the train will not come.

thing back. this held yet again by law enforcements at the southern edge. apart from the humanitarian groups, this is the european union at its most shambolic. join us sunday for: a tsunami warning for chilly has been lifted. chile and many pilds experienced -- pacific islands suffered a minor tidal wave. >> 12 people have been killed. chile had several powerful quakes in recent years. they come as a surprise, and they are shocking and often devastating. this quake struck early evening, the epicentre under the sea, about 230km north-west of the

capital, where buildings shook. effect were felt as far as i was buenos aires. >> this is one of the most powerful earthquakes in chili's history. despite this, with the information that we have, the response has been good. it was also something essential, and that was the cooperation of the people. to evacuate 670,000 people, and to do it with speed and without major difficulties implies that they are responding to the orders of the authority. >> it was followed by aftershocks. a million people were evacuated. warnings were issued about the approach of waves caused by a tsunami that followed. i lost everything, what can i say, i lost it all.

i don't have a shop. i lost my house near the beach. people here are prepared, it was too strong, 2-3 minutes after they evacuate. i live at hyde park, there's no damage. it's in the center. >> there was damage along the northern coast. the clean-up operation is under way, again. chile was hit by a powerful earthquake in 2010. it killed 500 people, causing damage. there was another last year. the country has taken measures, but no one is fully prepared with earthquakes of this size. >> the federal reserve decided to keep u.s. center rates at record lows, but the fed chair could come as irly as gle. month. there has been proved in the

u.s. job harkts. global pressure may restrain the movement. a slowdown intensified fires. the fed will meet in october. turning to the ways for the white house, and the candidates made a lot of claims, as david shuster reports, several were false. >> it has become an endemic. >> reporter: it's an issue dividing american family, wednesday night donald trump said this about childhood vaccinations. >> just the other day two years old, 2.5 years old, a beautiful child went to have the vaccine, and came back and a week later had a fever, got sick, now is autistic. >> reporter: but the one study connecting vaccines to autism was falsified. valid scientific data never established a link. a point made by rivals. >> there has been numerous

studies, they have not demonstrated any correlation between vaccinations and autism. a big applause line came from carlie fior eena, when she attacked planned parenthood. >> i dare hillary clinton, president obama, to watch these tapes. watch. watch a fully formed foetus on the table. it's heart beating. its legs kicking while someone sis we have to keep it alive to harvest its brain. >> reporter: as "the washington post" reports, there's no video showing such a scene. the closest thing, the anti-apportion group criticizing planned parenthood is an interview of a former technician scribing a procedure. >> she taps the heart and it starts beating. donald trump and jed bush clashed repeatedly. >> excuse me one second. >> no. >> more energy tonight.

i like it. >> this involved allegations about influence in florida. >> when he asked florida to have casino gambling, we said know. that's the simple fact. >> don't make things up. >> according to fact checkers, jed bush was not making it up. a fundraiser was held, lobbied for a florida casino, and bush rejected the plan. on the issue of illegal immigration, he said the status quo is inflicting a huge cost. illegal immigration is costing us more than 200 million, maintaining what we have. we are spending $200 billion on maintaining what we have. >> an estimate from the federation for immigration reform, a conservative group, says undocumented immigrants cost the u.s. $113 billion, not

$200. many undocumented immigrants pay payroll taxes. as a result, experts say there are benefits to the u.s. treasury in addition to the call. claims about climate change also made it into the debate. florida senator marco rubio said there would be an unnecessary toll if the united states tried to take action. and marco rubio said he is opposed. >> we will not make america a harder place to create jobs. to pursue policies that will do nothing to change the economy, climate, weather. america is a lot of things, the greatest country in the world. >> it's true. america is not a planet. but as fact-check.org points out. that does not mean that toll sis at the national level have no effect on the climate. according to scientists, lowering u.s. emissions have an impact. the truth is a cas umenty in political debate.

in this event there were at least 18 questionable claims. >> a high school student arrested for bringing a home-made gun to school told his story. a teacher mistook akmed's clock for a bomb. the investigation has been dropped. the islamic association does not blame the school district or police. but akmed says he thinks he was discriminated against because he is muslim. >> there's a lot of stereotypes for people who are foreigners. and they have muslim names, not specifically muslim, but mainly islam. >> you don't think it would have happened to one of your classmates if they brought a clock in to school. >> no, it wouldn't. >> you sure of that.

>> yes. >> reporter: why do you think - a police officer said to you when he saw you, one of the four police officers said - he looked at you and said "that's who i thought it was." >> i think it was because of my race, because of where i'm from and my name. it makes me feel different. that i was a threat to them. >> obviously you are not a threat. you are a 14-year-old boy. do you think the police,the school or the police should apologies. they should. this is my first invention. just because one person did something, doesn't mean they can change who i am. >> akmed has invitations to visit the white house , m.i.t.

and from mark zurker berg relics of war killing and pounding. next, the success in clearing land mines from mozambique. and my conversation with cindy mclain will per part. >> and california's wildfires claim more homes and lives.

emergency crews until california found two more victims of the state's devastating wildfires. the bodies found inside homes burnt by the valley fire. that and another fire burning further east killed five, destroying 800 homes. crews say rain and cooler weather helped them make progress fighting the fires. a hearing to despite whether bowe bergdahl should be prosecuted.

his commander described a 5-day gruelling search. he was held by the taliban for five years and released after fich taliban prisoners were released. >> officials want the transcripts public. >> there's no question this is a case of considerable center. many made up their minds. a few people maybe haven't. i think it would be halthy for everyone to have more information rather than less. >> defense attorneys say they plan to call four witnesses, but have not said whether berg dafl will be among them. the hearing resulting in a report sent to the attorney general, who will decide if bergdahl will face a court-martial. >> the battle to get rid of land mineses is felt around the world. after a 20-year effort to clear the fields of buried explosives,

the country has been declared landmine free. while mozambique and in the clear, other nations are not. according to the u.n., land mines can be found in 78 countries. casualties caused has declined in years. in 2012, 3600 were killed or maimed. the mines cost from as little as three to $75 to produce, but removing them cost between 300 and $1,000 per landmine. 162 countries signed a 1997 mine ban treaty. 35, including the u.s., russia and china have not signed. >> activists and anti-landmine campaigner cindy mclain joins us, a trustee of the landmine crush. she was there a couple of weeks to dettionate the last-known

landmine. good to have you with us. i know you spent a lot of time and seen suffering caused and this must have been a great moment for you and the people of mozambique. >> it was a wonderful day. not so much for me, but the people affected the post. they began to develop, produce agriculture. to live a peaceful life is what this is all about. they sfect millions because of the impact on agriculture. >> if you can't walk outside the door, you may blow yourself or your animal. it's a major deal. people are subsistence farmers,

and to not farm the small patch of land can mean life and deck. >> some have the biggest stockpiles. in the the countries are on board, will it be tough to win the battle. >> well, it's an uphill battle, yes. companies that produce large amounts of land mines, in mozambique, and other countries, are not produced by one country. they are literally lair upon lair and produced by different countries, our purpose and why we do it is, as i said, to offer safe and free land and the ability for countries to

prosper, but the explosives do not wind up in the hands of the bad guys. >> the u.s. spent more than any other country, welcoming the mozambique announcement. is the u.s. government doing enough? >> absolutely. i think the u.s. government has been very proactive on this. as you know, they are very supportive. a large portion of funding that comes to the halo trust from the u.s. is from our own state department. it's an important aspect of - as we said, making sure that the lands is safe, making sure that people know that they are supported by countries that go truly want them to have a safe and prosperous life. >> casualties have been declining in no small part thanks to halo's activities. cindy mclain, good of you to

join us and give us your perspective. congratulations on your efforts. >> thank you. >> still ahead on al jazeera america - a frightening scene in florida. 27 children on a school bus plunged into a pawn. how it happened in the words of a student. a museum tells the scory of the soviet side of the space race.

a school bus with dozens of children drove into a lake. the tampa elementary school students were heading home when it veered off the roads.

27 children from on the bus. witnesses say the driver stayed on the bus and made sure all the children got out. older students helped the younger ones swim to safety. no one was seriously hurt. >> stepping on the breaks, but the breaks were not working. everyone started screaming, because we accelerated. so after that happened, we slammed into the gates, and then we hit a tree, and the bus flipped and went into the lake. >> there's no explains about what caused the accident. officials are investigating to see if the bus had mechanical problems ash carter hosted an award for three americans that stopped an attack on the strain. air force airman spencer stone received the airman's medal and purple hard. alex the soldiers medal and anthony sadler, civilian, was awarded a medal of valor.

president obama met with the three moderns. >> they represent the best of america, american character, and, you know, it's these kinds of young people who make me optimistic and hopeful about the future. >> they tackled, disarmed and held the man that boarded the train with an assault rifle, box cutter. >> neil armstrong's steps on the moon is often seen as a benchmark. a london exhibition on russian space travel tells the story of how space exploration brought the two foes together. >> reunited with a capsule, the first woman in space, cosmo naught. voss tabbing six is a museum piece. once they took off in 1963, it

could have been a one-way trip. >> i asked her in she was scared. it was work, she tells me. if you were afraid you'd never be allowed into space. the capsule is like a close friend. made from space technology. she returned a hero from the soviet union, and is the only woman to fly a solo mission into space. several years original, the soviets kick started with a series of first. the first satellites sputnik one. and then the first man in space. in 1965, amexy carried out a space walk and summer assault. many of these artefacts never left russia, some needed to be declassified before they travelled. the soviet union's earlier achievement is san as beating

moscow, in putting a man on the moon. >> it may be a legacy of cold war tensions that here in the west sees major achievements eclipse the bid n.a.s.a.'s moon landings, when it comes to the space race, there's a winner, the soviet union. >> russians landed the first probe on the moon, and on venus. when you think about it calmly, they are incredible scientific achievements. just as important as the loner lander. it's sexy and has p.r. other things are important. >> with a space race over, tensions have been replaced by cooperation and joint missions. after the u.s. grounded the shuttle fleet in 2011, it pays russia 63 million per astronaut, per trip. this charts man's early cos fibbing achievements.

from the spacecraft to toilet. meaning. moments in the journey into the unknown i'm antonio mora, thanks tore joining us. for the latest news any time head to aljazeera.com. ray suarez is next. have a good night. ♪ >> the stage was crowded, the debate was long, but it was all in all a useful tour of the political landscape, an expo situation of what the candidates believe the republican primary voters are interested in and what they want in the next president. g.o.p. debate night two, it's the inside story. ♪